Pivot bearing



FIG. 1 is a perspective view of the pivot bearing.

FIG. 2 is top view of the pivot bearing of FIG. 1.

FIG. 3 is a bottom view of the pivot bearing of FIG. 1.

FIG. 4 is a left side view of the pivot bearing of FIG. 1.

FIG. 5 is a right side view of the pivot bearing of FIG. 1.

FIG. 6 is a front view of the pivot bearing of FIG. 1; and,

FIG. 7 is a rear view of the pivot bearing of FIG. 1. 

CLAIM The ornamental design for a pivot bearing, as shown. 